/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.apache.streampipes.wrapper.params.generator;

import org.apache.streampipes.extensions.api.pe.param.InputStreamParams;
import org.apache.streampipes.model.base.InvocableStreamPipesEntity;
import org.apache.streampipes.model.output.PropertyRenameRule;
import org.apache.streampipes.model.util.SchemaUtils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public abstract class PipelineElementParameterGenerator<T extends InvocableStreamPipesEntity> {

  protected Map<String, Map<String, Object>> buildInEventTypes(T pipelineElementInvocation) {
    var inEventTypes = new HashMap<String, Map<String, Object>>();
    pipelineElementInvocation
        .getInputStreams()
        .forEach(is ->
            inEventTypes.put(is.getEventGrounding().getTransportProtocol().getTopicDefinition().getActualTopicName(),
                SchemaUtils
                    .toRuntimeMap
                        (is.getEventSchema().getEventProperties())));

    return inEventTypes;
  }


  protected List<InputStreamParams> buildInputStreamParams(T pipelineElementInvocation) {
    var inputStreamParams = new ArrayList<InputStreamParams>();
    for (int i = 0; i < pipelineElementInvocation.getInputStreams().size(); i++) {
      inputStreamParams.add(new InputStreamParams(i, pipelineElementInvocation.getInputStreams().get(i),
          getRenameRules(pipelineElementInvocation)));
    }

    return inputStreamParams;
  }

  protected abstract List<PropertyRenameRule> getRenameRules(T pipelineElementInvocation);
}
